You could try it and find out but it is unlikely that it will "just work".
Old versions of Progress have had trouble with new versions of Windows for a long time now. Installs usually hang. One common problem is the "isdel.exe" part of things needing to be killed via taskmgr. Assumptions about how the registry works that were reasonable in 1995 don't work so well in 2015...
You might be able to batter it into submission. For instance, I have a version 6.2 that sort of mostly kind of "works" well enough to extract data from old orphaned databases in an emergency. But you wouldn't want try to run it in real life.